Mounir Kharoubi

Université 8 mai 1945 - Guelma · Department of Mechanical Engineering

This paper develops and presents a technique on the identification of the damage location and depth in a beam using a frequency contour method. Unlike the frequency contour methods presented in the literature, the one presented in this work does not require neither the solving of the governing differential equation analytically to obtain the contou...

Finite element (FE) model updating technique belongs to the class of inverse problems in classical mechanics. According to the continuum damage mechanics, damage is represented by a reduction factor of the element stiffness and mass. The objective of the optimization problem is to minimize the difference between measured and numerical FE vibration...

The paper presents an analysis of the damping of laminated beams with four different stacking sequences. The experimental investigation was conducted using tensile cyclic tests for different laminates studied. The impulse technique was chosen to perform modal analysis of the ease of implementation and quickness of the test. The numerical analysis i...

Le présent travail a pour objet la caractérisation et le suivi de l'endommagement de matériaux composites stratifiés lors d'essais de traction statique en charge – décharge. Une méthode d'évaluation non destructive (Emission Acoustique) et utilisée. Les éprouvettes sont instrumentées par trois capteurs acoustiques. L'acquisition est faite à l'aide...

Le présent travail a pour objet de mettre en évidence les potentialités des méthodes d'évaluation non destructive (END) par vibrations linéaires pour la caractérisation et le suivi de l'endommagement des matériaux composites stratifiés. Les propriétés mécaniques des stratifiés ont été déterminées par des essais de traction effectués sur différentes...

We present on this paper an experiment study of the follow-up of the damage of two laminate composites manufactured by RTM during their loadings in 3 points bending in static and cyclic tests. These materials are composed E glass fibres and epoxy resin. The mechanical tests are carried out on a standard hydraulic machine INSTRON 8516 that can be us...